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Fish Cipher




The FISH (FIbonacci SHrinking) Stream Cipher is a fast Software based stream cipher using Lagged Fibonacci Generator s, plus a concept from the Shrinking Generator cipher. It was published by Siemens in 1993 . FISH is quite fast in software and has a huge Key Length . However, in the same paper where he proposed Pike , Ross Anderson showed that FISH can be broken with just a few thousand Bit s of known Plaintext .


REFERENCES

  • Uwe Blöcher and Markus Dichtl, Fish: A Fast Software Stream Cipher, Fast Software Encryption 1993, pp41–44.

  • Ross J. Anderson, On Fibonacci Keystream Generators, Fast Software Encryption 1994, pp346–352.